Aluminum plastic film package material for lithium battery
Active Publication Date: 2014-02-05
NANYA PLASTICS CORP
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[0015] However, the lithium battery packaging materials made by the above-mentioned prior art still cannot meet the re
Method used
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[0095] [Example 1]
[0096] Add 100 parts by weight of polyol (product of Nanya Plastics Company, Mw=3000), 1 part by weight of OH-containing modified fluorocarbon resin, and (organotin T12) catalyst, antioxidant-1010 and solvent are added to a four-mouth beaker, After mixing and heating to 80°C, adding a metered amount of toluene diisocyanate (TDI) with continuous stirring, and reacting for 5-8 hours, after cooling, a fluorine-containing polyurethane polyol is obtained.
[0097] The above-mentioned fluorine-containing polyurethane polyol is mixed with 10 parts by weight of novolac epoxy resin (product of Nanya Plastics Co., Ltd.) and multifunctional isocyanate to obtain a fluorine-containing polyurethane resin bonding adhesive.
[0098] Aluminum plastic film production:
[0099] (1) Adopting a 25-micron thick Nylon film as the substrate layer;
[0100] (2) Use polypropylene film with a thickness of 40 microns as the inner layer;
[0101] (3) Use a soft aluminum foil with a thickness of...
Example Embodiment
[0106] [Example 2]
[0107] Using the adhesive composition of Table 1, the fluorine-containing polyurethane polyol of Example 1 was synthesized with 5 parts by weight of OH-containing modified fluorocarbon resin, and the rest of the aluminum-plastic film production conditions were the same as those of Example 1.
[0108] The physical properties of the aluminum-plastic film were tested, and the results are shown in Table 1.
Example Embodiment
[0109] [Example 3]
[0110] Using the adhesive composition in Table 1, the fluorine-containing polyurethane resin adhesive of Example 1 was replaced with 20 parts by weight of bisphenol A epoxy resin and 20 parts by weight of novolac phenol formaldehyde epoxy resin, and the rest was made of aluminum plastic The film conditions are the same as in Example 1.
[0111] The physical properties of the aluminum-plastic film were tested, and the results are shown in Table 1.
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Abstract
The invention discloses an aluminum plastic film package material for a lithium battery. The aluminum plastic film package material for the lithium battery has the water proofing performance, the high temperature resistance and the corrosion resistance and is in a lamination structure comprising a base material layer, a bonding layer, an aluminum foil layer, a corrosion resistant layer, a joint layer and an inner layer from the outermost layer to the innermost layer; one side surface or two side surfaces of the aluminum foil layer can be coated with conductive coating and the coating is solidified so as to form the corrosion resistant layer; the joint layer between the corrosion resistant layer and the inner layer can be formed by using fluorinated polyurethane resin joint adhesive. When the aluminum plastic film package material is applied to the aluminum plastic film package of the lithium battery, the excellent water proofing performance, high temperature resistance and corrosion resistance of the lithium battery can be promoted, and the service life of the lithium battery can be prolonged.
Description
technical field [0001] The invention relates to an aluminum-plastic film packaging material for lithium batteries, in particular to an aluminum-plastic film packaging material with excellent water resistance, high temperature resistance and corrosion resistance, which can be used as aluminum-plastic film packaging for lithium batteries. Increase the service life of lithium batteries. Background technique [0002] Under the premise of the same capacity, lithium batteries are required to be light, thin and have a long life. In addition to changing the original cylindrical shape to a flat type, the packaging material has also been changed from a metal shell to a soft packaging aluminum-plastic film, and has been widely used. For 3C products such as iPhone, iPad, Ultrabook, etc., it is currently being actively developed for use in electric vehicles. [0003] Aluminum-plastic film packaging materials for lithium batteries are similar in structure to food flexible packaging compo...
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